esp32

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Arduino UNO R4 Renesas RA4M1 32-bit maker board offered with optional ESP32-S3 WiFI & BLE module

Arduino UNO R4 Renesas RA4M1 32-bit maker board offered with optional ESP32-S3 WiFI & BLE module

Arduino UNO R4 board

Arduino have launched an upgrade to their 8-bit Arduino UNO R3 board with the Arduino UNO R4 featuring a 48 MHz Renesas RA4M1 Arm Cortex-M4F 32-bit microcontroller, and an optional ESP32-S3 module for WiFi 4 and Bluetooth 5.0 connectivity. The new Arduino UNO R4 offered improved performance and greater resources since the MCU is clocked three times faster than the 8bit AVR MCU found in the UNO R3, the board gets sixteen times more RAM (32KB vs 2KB to 32kB) and eight times more flash memory (256KB vs 32kB). The USB Type-C device port has been upgraded to a more modern USB Type-C port and the UNO R4 can take up to 24V supply voltage. Arduino UNO R4 (preliminary) specifications: Microcontroller – Renesas RA4M1 Arm Cortex-M4F MCU @ 48 MHz with 32KB SRAM, 256KB flash. 8KB dataflash Wireless (Arduino UNO R4 WiFi only) – ESP32-S3-MINI-1 module based on ESP32-S3 dual-core […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on XIAO ESP32S3 is a tiny ESP32-S3 WiFi 4 and BLE 5.0 module for IoT, AI, and robotics

XIAO ESP32S3 is a tiny ESP32-S3 WiFi 4 and BLE 5.0 module for IoT, AI, and robotics

Seeed Studio XIAO ESP32S3 is the new member of the company XIAO family with an ESP32-S3 dual-core wireless microcontroller with WiFi 4 and BLE 5.0 designed for Smart Home, IoT, wearables, and Robotics applications. It succeeds the single-core ESP32-C3-based XIAO ESP32C3  board with the same form factor, but the new XIAO ESP32S3 offers more performance, vector extension for machine learning, more flash, and improved power consumption in deep sleep mode. Seeed Studio XIAO ESP32C3 specifications: Wireless MCU – Espressif Systems ESP32-S3R8 dual-core Tensilica LX7 microcontroller @ 240 MHz with 512KB SRAM, 8MB PSRAM, Wi-Fi 4 & Bluetooth 5.0 dual-mode (Classic + BLE) connectivity Storage – 8MB SPI flash Antenna – External u.FL antenna USB – USB Type-C port for power and programming Expansion I/Os 2x 7-pin headers with 1x UART, 1x I2C, 1x SPI, 11x GPIO (PWM), 9x ADC 3.3V I/O voltage (not 5V tolerant) Debugging – JTAG pads Misc […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on SONOFF MINIR4 review – A Tiny WiFi Smart Switch tested with eWelink app/web, and R5 controller

SONOFF MINIR4 review – A Tiny WiFi Smart Switch tested with eWelink app/web, and R5 controller

In this post, we’ll review the SONOFF Mini Extreme, also known as MINIR4, WiFi smart switch based on ESP32 wireless MCU by installing it into a wall-mounted light switch box and controlling it with both the eWelink mobile app for Android and the SONOFF R5 scene controller. SONOFF MINIR4 Installation We’ve already gone through the specifications, unboxing, and teardown in the announcement, so I’ll get straight to the installation part. Note this review was done with a light switch “box” (about 11x6cm) in Thailand, so your mileage may vary. The first challenge is that contrary to the similarly-sized SONOFF ZBMINI Extreme Zigbee switch, the MINIR4 WiFi switch requires a neutral cable, and most lights in Thailand are wired without a neutral wire, so I had to get the neutral wire from the outlet switch box underneath. When I call those “boxes” there are really holes in the wall here… Wiring […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Portenta C33 is a lower cost Arduino Pro board based on Renesas RA6M5 Arm Cortex-M33 MCU

Portenta C33 is a lower cost Arduino Pro board based on Renesas RA6M5 Arm Cortex-M33 MCU

Arduino Portenta C33 is the latest board from the Arduino Pro family which the company dubs a “high-performance, low-price” solution based on a 200 MHz Renesas RA6M5 Arm Cortex-M33 microcontroller and equipped with a ESP32-C3 Wi-Fi and Bluetooth Low Energy module. The new board provides a cost-effective alternative to the Portenta H7 and X8 boards, but still offers wireless connectivity, a secure element for industrial-grade security, and compatibility with Portenta, MKR, and Nicla components. Portenta C33 specifications: Microcontroller – Renesas R7FA6M5BH2CBG Arm Cortex-M33 microcontroller @ up to 200 MHz with 512KB SRAM, 2MB Flash, Arm TrustZone, and Secure Crypto Engine 9 Storage – 16 MB QSPI Flash Connectivity 10/100M Ethernet PHY ESP32-C3 WiFi and BLE module USB – 1x USB Type-C high-speed port with Power Delivery support I/Os via 2x 80 pin high-density connectors, Arduino MKR headers with castellated hole, and a 5-pin I2C connector Storage – SD Card Networking […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 9 Comments on Arduino UNO compatible Adafruit Metro M7 features 500 MHz NXP i.MX RT1011 Cortex-M7 SoC

Arduino UNO compatible Adafruit Metro M7 features 500 MHz NXP i.MX RT1011 Cortex-M7 SoC

Adafruit Metro M7 is a development board based on a 500 MHz NXP i.MX RT1011 Arm Cortex-M7 crossover MCU that follows Arduino UNO form factor and integrates the ESP32-based “AirLift” WiFi module for wireless connectivity. The board also comes with 4MB QSPI storage, a few LEDs and buttons, a Qwiic connector for additional expansion beyond Arduino Shields, and an SWD connector for debugging. The board takes 6V to 12V DC input via a power barrel jack, but can also be powered through its USB Type-C port. Adafruit Metro M7 specifications: SoC – NXP iMX RT1011 crossover microcontroller with an Arm Cortex-M7 clocked at 500 MHz and 128KB SRAM/TCM Storage – 4MB of QSPI XIP Flash Wireless – AirLift WiFi co-processor with TLS/SSL support (better known as ESP32-WROOM-32) USB – 1x USB Type-C port for power and programming Expansion Arduino UNO headers for Arduino shields compatibility STEMMA QT connector for I2C […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 6 Comments on Home Assistant compatible “ESP 360 Remote” controls infrared and 433MHz appliances over WiFi (Crowdfunding)

Home Assistant compatible “ESP 360 Remote” controls infrared and 433MHz appliances over WiFi (Crowdfunding)

ESP 360 Remote is an ESP32-based IR and 433 MHz RF remote with built-in sensors used to control home appliances over WiFi and that also integrates with Home Assistant open-source home automation framework. The open-source hardware design is comprised of a mainboard with an ESP32-WROOM-32E module, temperature, humidity, and light sensors, and a board on the top with nine infrared LEDs, one IR receiver, as well as a 433 MHz (or 315 MHz) RF receiver and transmitter with the receivers used for learning the code from the remote controls. ESP 360 Remote specifications: Wireless module – ESP32-WROOM-32E with ESP32 dual-core microcontroller 4MB flash 2.4 GHz WiFi and Bluetooth LE connectivity, built-in PCB antenna, fully compatible with ESPHome firmware Control interface 9x High Power IR LEDs to control devices in all directions (hence the 360 name) IR receiver to learn remote control codes 433 MHz (or 315 MHz) RF transmitter 433 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on IoT board supports WiFi, Bluetooth, NB-IoT, Cat-M and GNSS with ESP32-S3 and SIM7080G modules

IoT board supports WiFi, Bluetooth, NB-IoT, Cat-M and GNSS with ESP32-S3 and SIM7080G modules

LILYGO T-SIM7080G-S3 is an ESP32-S3 WiFi and Bluetooth IoT board with a SIMcom SIM7080G LTE Cat-M (eMTC), NB-IoT, and GNSS module for low-power long-range connectivity and asset tracking. The board also comes with a 18650 battery holder, a solar panel input, a microSD card slot, a camera port, and several I/Os and provides an alternative to the TTGO T-Beam ESP32 board that relies on LoRaWAN for long-range connectivity instead. LILYGO T-SIM7080G-S3 specifications: Wireless modules Espressif ESP32-S3-WROOM-1-N16R8 module with ESP32-S3 dual-core LX7 microprocessor @ up to 240 MHz with Vector extension for machine learning, 16MB flash, 8MB PSRAM, WiFi 4 and Bluetooth 5 LE/Mesh SIMCom SIM7080G global multi-band Cat-M and NB-IoT module with GNSS Bands: Cat-M – B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26 /B27/B28/B66/B85 NB-IoT – B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28 /B66/B71/B85 Data rate Cat-M – Uplink: 1,119 Kbps, downlink: 589 Kbps NB-IoT: Uplink: 150 Kbps downlink: 136 Kbps LTE RF Power Class: 5 (Typ. 21dbm) GNSS – GPS, GLONASS, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Floppy thumb drive integrates Adafruit PyPortal display based on Microchip SAMD51 MCU

Floppy thumb drive integrates Adafruit PyPortal display based on Microchip SAMD51 MCU

Anne Barela’s Floppy Thumb Drive project houses the Adafruit PyPortal internet display in a 3D-printed enclosure that looks like a 3.5-inch floppy disk, just a bit thicker. The computer-in-a-floppy-disk project runs CircuitPython code to list the first 12 files stored in the flash and can display photos or animations, play audio, or execute scripts. The project consists of three main parts: The Adafruit PyPortal internet display with Microchip SAMD51 (ATSAMD51J20) Arm Cortex-M4F microcontroller @ up to 120 MHz with 1 MB flash, 256 KB SRAM Display – 3.2-inch 320 x 240 color TFT display with resistive touchscreen Audio – Speaker Storage 8MB flash storage optional microSD card (not used in the project). ESP32 for WiFi and Bluetooth connectivity (not used in the project) Sensors – Light and Temperature sensors Misc – NeoPixel RGB Micro USB to USB cable 3D printed files for the front cover, back door, front door, disk, […]

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